Patents by Inventor Michael D. Moehnke

Michael D. Moehnke has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7155895
    Abstract: A coupling link for connecting chain includes a generally C-shaped link member, a lock member, and a securing member. The C-shaped link member defines an interior opening and has first and second opposing ends that are spaced from each other by a gap. The lock member is shaped to couple the first and second ends together. The securing member is operable to secure the lock member to the link member and to urge the first and second ends of the link member closer together.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: January 2, 2007
    Assignee: Columbia Steel Casting Co., Inc.
    Inventors: Michael D. Moehnke, Stephen P. Doan, Anthony Miotke
  • Patent number: 6871486
    Abstract: A chain link has a substantially centrally located juncture section with a first eye portion integrally connected to one end of the juncture section and a second eye portion integrally connected to the opposite end of the juncture section. The eye portions extend longitudinally outwardly from opposite ends of the juncture section and are disposed at a substantial angle relative to each other at opposite ends of the link. Such link may be connected to contiguous links to form a segment of a chain, with all of the links in a segment of chain thus produced having substantially the same orientation when the chain is held straight.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: March 29, 2005
    Assignee: Columbia Steel Casting Co., Inc.
    Inventors: Michael D. Moehnke, Stephen P. Doan, Richard John Stewart, David Garnet John Conroy, Martin Charles Simpson, James Anthony Russell, Peter Alan Lude
  • Publication number: 20040139719
    Abstract: A chain link has a substantially centrally located juncture section with a first eye portion integrally connected to one end of the juncture section and a second eye portion integrally connected to the opposite end of the juncture section. The eye portions extend longitudinally outwardly from opposite ends of the juncture section and are disposed at a substantial angle relative to each other at opposite ends of the link. Such link may be connected to contiguous links to form a segment of a chain, with all of the links in a segment of chain thus produced having substantially the same orientation when the chain is held straight.
    Type: Application
    Filed: December 23, 2003
    Publication date: July 22, 2004
    Applicant: Columbia Steel Casting Co., Inc.
    Inventors: Michael D. Moehnke, Stephen P. Doan, Richard John Stewart, David Garnet John Conroy, Martin Charles Simpson, James Anthony Russell, Peter Alan Lude
  • Publication number: 20030213226
    Abstract: A chain link has a substantially centrally located juncture section with a first eye portion integrally connected to one end of the juncture section and a second eye portion integrally connected to the opposite end of the juncture section. The eye portions extend longitudinally outwardly from opposite ends of the juncture section and are disposed at a substantial angle relative to each other at opposite ends of the link. Such link may be connected to contiguous links to form a segment of a chain, with all of the links in a segment of chain thus produced having substantially the same orientation when the chain is held straight.
    Type: Application
    Filed: May 14, 2002
    Publication date: November 20, 2003
    Applicant: Columbia Steel Casting Co., Inc.
    Inventors: Michael D. Moehnke, Stephen P. Doan
  • Patent number: 5966849
    Abstract: A lock system removably connects an earth-engaging tooth point to an adapter. The lock system is particularly suited to tooth points for large excavating buckets, such as dragline buckets. The forward-extending nose of the adapter fits within the rear-facing socket of the tooth point. Ears extend back from the tooth point on both sides of the adapter and define apertures adapted to receive pins. A hole in the adapter is also adapted to receive the pins. The pins extend through the apertures and into the hole, thus fixedly connecting the tooth point to the adapter. To remove the tooth point, both pins can be driven into the adapter hole and housed there concurrently. The tooth point can then be removed and the pins later driven out of the hole. A lock system also connects a main body pin to a rigging part. The lock system is particularly suited to large rigging parts, such as for draglines.
    Type: Grant
    Filed: May 7, 1998
    Date of Patent: October 19, 1999
    Assignee: Columbia Steel Casting Co., Inc.
    Inventors: Michael D. Moehnke, Bruce C. Johnson
  • Patent number: 5956874
    Abstract: A lock system removably connects an earth-engaging tooth point to an adapter. The forward-extending nose of the adapter fits within the rear-facing socket of the tooth point. A pair of opposing sides of the socket defines coaxial apertures. The adaptor has a hole through opposing sides. A locking pin is inserted into the apertures and the hole, thus fixedly connecting the tooth point to the adapter. The locking pin is retained by a keeper situated in an annular groove within one of the apertures.
    Type: Grant
    Filed: May 7, 1998
    Date of Patent: September 28, 1999
    Assignee: Columbia Steel Casting Co., Inc.
    Inventors: Garrick J. Ianello, Michael D. Moehnke
  • Patent number: 5937551
    Abstract: A lock system removably connects an earthengaging tooth point to an adapter. The lock system is particularly suited to tooth points for large excavating buckets, such as dragline buckets. The forward-extending nose of the adapter fits within the rear-facing socket of the tooth point. Ears extend back from the tooth point on both sides of the adapter and define apertures adapted to receive pins. A hole in the adapter is also adapted to receive the pins. The pins extend through the apertures and into the hole, thus fixedly connecting the tooth point to the adapter. To remove the tooth point, both pins can be driven into the adapter hole and housed there concurrently. The tooth point can then be removed and the pins later driven out of the hole.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: August 17, 1999
    Assignee: Columbia Steel Casting Co., Inc.
    Inventors: Michael D. Moehnke, Bruce C. Johnson